Difference between revisions of "Cf252 runs with HPGe"
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| Line 10: | Line 10: | ||
| none || 1250 || 26 || 2800 || 9655 || colspan=2 |Not taking data during this time. | | none || 1250 || 26 || 2800 || 9655 || colspan=2 |Not taking data during this time. | ||
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| − | | 5611 || 2509 || 30 || 4230 || 13885 || Cf252 in. Coincidence between HPGe and timing PMT. TDC stop always 1200 ns after PMT timing pulse, otherwise same setup as 5609. | + | | 5611 || 2509 || 30 || 4230 || 13885 || Cf252 in. Coincidence between HPGe and timing PMT. TDC stop always 1200 ns after PMT timing pulse, otherwise same setup as 5609. || ToF looks good. Neutron rate approx. 3 Hz for detector 90. |
|- | |- | ||
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Revision as of 04:46, 30 December 2016
12/29/16
| Run # | RunTime [sec] | distance[cm] | n flux (Cf252 rates) |
Integral n flux |
configuration | notes |
|---|---|---|---|---|---|---|
| 5609 | 4060 | 30 | 6850 | 6850 | Cf252 in. Coincidence between HPGe and timing PMT | A ToF spectrum exists but is very hectic. Problem may be that the TDC stop is determined by a widened timing PMT pulse in coinc with a HPGe pulse that has high timing jitter. |
| none | 1250 | 26 | 2800 | 9655 | Not taking data during this time. | |
| 5611 | 2509 | 30 | 4230 | 13885 | Cf252 in. Coincidence between HPGe and timing PMT. TDC stop always 1200 ns after PMT timing pulse, otherwise same setup as 5609. | ToF looks good. Neutron rate approx. 3 Hz for detector 90. |